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| Mirrors > Home > ILE Home > Th. List > funvtxval0d | GIF version | ||
| Description: The set of vertices of an extensible structure with a base set and (at least) another slot. (Contributed by AV, 22-Sep-2020.) (Revised by AV, 7-Jun-2021.) (Revised by AV, 12-Nov-2021.) |
| Ref | Expression |
|---|---|
| funvtxval0.s | ⊢ 𝑆 ∈ V |
| funvtxval0d.g | ⊢ (𝜑 → 𝐺 ∈ 𝑉) |
| funvtxval0d.fun | ⊢ (𝜑 → Fun (𝐺 ∖ {∅})) |
| funvtxval0d.ne | ⊢ (𝜑 → 𝑆 ≠ (Base‘ndx)) |
| funvtxval0d.dm | ⊢ (𝜑 → {(Base‘ndx), 𝑆} ⊆ dom 𝐺) |
| Ref | Expression |
|---|---|
| funvtxval0d | ⊢ (𝜑 → (Vtx‘𝐺) = (Base‘𝐺)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | basendxnn 13408 | . . 3 ⊢ (Base‘ndx) ∈ ℕ | |
| 2 | 1 | elexi 2834 | . 2 ⊢ (Base‘ndx) ∈ V |
| 3 | funvtxval0.s | . 2 ⊢ 𝑆 ∈ V | |
| 4 | funvtxval0d.g | . 2 ⊢ (𝜑 → 𝐺 ∈ 𝑉) | |
| 5 | funvtxval0d.fun | . 2 ⊢ (𝜑 → Fun (𝐺 ∖ {∅})) | |
| 6 | funvtxval0d.ne | . . 3 ⊢ (𝜑 → 𝑆 ≠ (Base‘ndx)) | |
| 7 | 6 | necomd 2506 | . 2 ⊢ (𝜑 → (Base‘ndx) ≠ 𝑆) |
| 8 | funvtxval0d.dm | . 2 ⊢ (𝜑 → {(Base‘ndx), 𝑆} ⊆ dom 𝐺) | |
| 9 | 2, 3, 4, 5, 7, 8 | funvtxdm2vald 16272 | 1 ⊢ (𝜑 → (Vtx‘𝐺) = (Base‘𝐺)) |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: → wi 4 = wceq 1402 ∈ wcel 2209 ≠ wne 2420 Vcvv 2821 ∖ cdif 3217 ⊆ wss 3220 ∅c0 3520 {csn 3709 {cpr 3710 dom cdm 4774 Fun wfun 5371 ‘cfv 5377 ℕcn 9304 ndxcnx 13349 Basecbs 13352 Vtxcvtx 16253 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 623 ax-in2 624 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-14 2212 ax-ext 2220 ax-sep 4249 ax-nul 4259 ax-pow 4311 ax-pr 4346 ax-un 4578 ax-cnex 8270 ax-resscn 8271 ax-1re 8273 ax-addrcl 8276 |
| This proof depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-fal 1408 df-nf 1514 df-sb 1816 df-eu 2089 df-mo 2090 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ne 2421 df-ral 2533 df-rex 2534 df-rab 2537 df-v 2823 df-sbc 3052 df-csb 3148 df-dif 3222 df-un 3224 df-in 3226 df-ss 3233 df-nul 3521 df-if 3639 df-pw 3690 df-sn 3715 df-pr 3716 df-op 3718 df-uni 3936 df-int 3971 df-br 4131 df-opab 4193 df-mpt 4194 df-tr 4230 df-id 4438 df-iord 4511 df-on 4513 df-suc 4516 df-xp 4780 df-rel 4781 df-cnv 4782 df-co 4783 df-dm 4784 df-rn 4785 df-res 4786 df-iota 5337 df-fun 5379 df-fn 5380 df-f 5381 df-f1 5382 df-fo 5383 df-f1o 5384 df-fv 5385 df-1st 6374 df-1o 6687 df-2o 6688 df-en 7023 df-dom 7024 df-inn 9305 df-ndx 13355 df-slot 13356 df-base 13358 df-vtx 16255 |
| This theorem is used by: (None) |
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